as I have now been a test passenger four times, have checked in about 100 times, transferred several times, and have (virtually) arrived from all over the world I want to share some of my thoughts with you.
First of all I think that both LH and MUC have built a very good terminal here, which will serve the airlines and the passengers well.
The passengers' land-side arrival is divided into three streams: Cars arrive from the southern roads on Level 03, Taxis and Buses arrive on the northern side of Level 03. Pax coming from the train station or Terminal 1 arrive on Level 02 from the west. There is a number of Check-in desks on Level 02 for the train passengers. For the other passengers there are curbside check-ins for both C and F class. These check-ins are behind windows so that the CSA wont freeze their butt off in the winter. All curb-side counters are connected to the Luggage handling system. The check-in is in main hall on level 03 with well over 100 counters (both (wo)manned and with machines). There is the possiblity to check in luggage on the check-in machines. on Level 04 there shall be a number of restaurants and lounges (I don't know from where these are accessible). From here you also get to the visitors aera, (which should be level 07 I think).
Behind the check-in hall one finds the largest security checkpoint in the world (so I was told), I think over 60 x-ray machines and metal detectors are around. There are also priority lanes for the better-paying customers. After the check-point, the "Schengen" pax stay on that level and go to the gates G, while the "non-schengen" Pax climb one level up (05) where gates H are located after a rather large customs/immigration aera. All in all, over 100 gates can be found.
I find this layout of advantage because people who travel from a non-Schengen to another non-Schengen country will not need to hassle with either customs or immigration. They just stay in the Aera H. Interline Pax who come from / goto Schengen via Terminal 1, use the checkpoints known there, for interline non-schengen to non-schengen pax there shall be a Direct Ramp Service to bring them over to the other terminal.
Passengers travelling from G to H or vice versa all have to go to the immigration checkpoint in the main hall, which might make the paths to walk quite lengthy at times, but it should be no problem to get from any gate to any other gate within 15 minutes even when walking quite slowly, which is somewhat faster than the 30 minutes minimum connecting time and somewhat slower than the 11 minutes maximum "luggage-in-handling-system" time.
Arriving passengers will find about 15 luggage reclaim areas on the lowest level 02, where they can either get to their cars (South), to taxis or buses (North) or to the MAC/Terminal 1/ Station (West).
The jetbridges are quite complex, since each jetbridge contains one or two bridges to the aircraft (glassy ones so that you dont think you're somewhere in a mine), a gate for busses, and stairs/escalators/elevators to both aeras G and H. Of course, all the doors and escalators can only be enabled from the Hub Control Center (HCC), and not from the gate anymore due to security reasons. Two of the aircraft stands are planned for the A380 with a box of 80x80 meters, and the possibility of boarding via no less than 4 doors. More such gates can be added when the satellite terminals (up to 3) are added.
I hope you enjoyed that little report, if you have more questions, just ask